Color

#403f03

#403f03
hex#403f03
rgbrgb(64, 63, 3)
hslhsl(59, 91%, 13%)
oklchoklch(0.357 0.075 108.6)
Closest name: Green Not Found (#404404)Relative luminance 0.0465

Colors that go with #403f03

Royal Blue, Blue and Blush Pink lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #403f03

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#03043f

#3f2003 · #223f03

#033f3e · #3e033f

Split-complementary

Open in tool →

#03223f · #20033f

#033f20 · #03043f · #3f0322

Contrast

#403f03 as textRatioAAAA largeAAAFix
Aaon white
10.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.93:1failfailfail
  • AA: use #7a7806 as the text (4.52:1)
  • AAA: use #a19e08 as the text (7.41:1)
  • AA: or shift the background to #a8a8a8 (4.58:1)
  • AAA: or shift the background to #d1d1d1 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #403f03 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#403f03 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #403f03
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #403f03 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/403f03-bbbea2-4e96df-272d1f-f1ede9?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md